id:A071170 - OEIS Search Results

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n-th prime reduced modulo sigma[n].

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0, 0, 1, 0, 5, 1, 1, 4, 10, 11, 7, 9, 13, 19, 23, 22, 5, 22, 7, 29, 9, 7, 11, 29, 4, 17, 23, 51, 19, 41, 31, 5, 41, 31, 5, 60, 5, 43, 55, 83, 11, 85, 15, 25, 41, 55, 19, 99, 56, 43, 17, 43, 25, 11, 41, 23, 29, 1, 37, 113, 35, 5, 99, 57, 61, 29, 59, 85, 59, 61, 65, 164, 71, 31, 7 (list; graph; listen)

	OFFSET	`1,5`
	FORMULA	`a(n)=Mod[p(n), sigma(n)]=Mod[A000040(n), A000203(n)]`
	EXAMPLE	`n=25,p(25)=97, sigma(25)=31, Mod[97,31]=4=a[25]`
	MATHEMATICA	`Table[Mod[Prime[w], DivisorSigma[1, w]], {w, 1, 128}]`
	CROSSREFS	`Cf. A000040, A000203, A067697.` `Sequence in context: A073050 A139391 A110635 this_sequence A108691 A010333 A131777` `Adjacent sequences: A071167 A071168 A071169 this_sequence A071171 A071172 A071173`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), May 15 2002`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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